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DOI:	10.1371/journal.pone.0164119
论文题名:	Cadmium-109 Radioisotope Adsorption onto Polypyrrole Coated Sawdust of Dryobalanops aromatic: Kinetics and Adsorption Isotherms Modelling
作者:	Michael Adekunle Olatunji; Mayeen Uddin Khandaker; Yusoff Mohd Amin; Habibun Nabi Muhammad Ekramul Mahmud
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-10-5
卷:	11, 期:10
语种:	英语
英文关键词:	Adsorption ; Cadmium ; Sorption ; Isotherms ; Radioactivity ; Polymers ; Aqueous solutions ; Functional groups
英文摘要:	A radiotracer study was conducted to investigate the removal characteristics of cadmium (109Cd) from aqueous solution by polypyrrole/ sawdust composite. Several factors such as solution pH, sorbent dosage, initial concentration, contact time, temperature and interfering metal ions were found to have influence on the adsorption process. The kinetics of adsorption was relatively fast, reaching equilibrium within 3 hours. A lowering of the solution pH reduced the removal efficiency from 99.3 to ~ 46.7% and an ambient temperature of 25°C was found to be optimum for maximum adsorption. The presence of sodium and potassium ions inhibited 109Cd removal from its aqueous solution. The experimental data for 109Cd adsorption showed a very good agreement with the Langmuir isotherm and a pseudo-first order kinetic model. The surface condition of the adsorbent before and after cadmium loading was investigated using BET, FESEM and FTIR. Considering the low cost of the precursor’s materials and the toxicity of 109Cd radioactive metal, polypyrrole synthesized on the sawdust of Dryobalanops aromatic could be used as an efficient adsorbent for the removal of 109Cd radioisotope from radionuclide-containing effluents.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0164119&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23485
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0164119.PDF（1911KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Applied Radiation Laboratory, Department of Physics, University of Malaya, Kuala Lumpur, Malaysia;Applied Radiation Laboratory, Department of Physics, University of Malaya, Kuala Lumpur, Malaysia;Applied Radiation Laboratory, Department of Physics, University of Malaya, Kuala Lumpur, Malaysia;Polymer Laboratory, Department of Chemistry, University of Malaya, Kuala Lumpur, Malaysia

Recommended Citation:

Michael Adekunle Olatunji,Mayeen Uddin Khandaker,Yusoff Mohd Amin,et al. Cadmium-109 Radioisotope Adsorption onto Polypyrrole Coated Sawdust of Dryobalanops aromatic: Kinetics and Adsorption Isotherms Modelling[J]. PLOS ONE,2016-01-01,11(10)

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